+ virtual std::string effect_type_id() const { return "BlurEffect"; }
+
+ // We want this for the same reason as ResizeEffect; we could end up scaling
+ // down quite a lot.
+ virtual bool needs_texture_bounce() const { return true; }
+ virtual bool needs_mipmaps() const { return true; }
+ virtual bool needs_srgb_primaries() const { return false; }
+ virtual AlphaHandling alpha_handling() const { return INPUT_AND_OUTPUT_ALPHA_PREMULTIPLIED; }
+
+ virtual void inform_input_size(unsigned input_num, unsigned width, unsigned height);
+